Haha oh wow.jpg
This thread is impressively dumb. Now, I'll be the first to say I haven't liked hardly anything Blizzard has done since it merged with Activision, but the accusations of this thread are just silly. Blizzard is essentially a studio of Activision, who wouldn't let it deviate if it could (Bobby Kotick literally told the design team they have to focus on multimillion dollar IPs). Even then, he's ignoring the fact that Blizzard is constantly putting out content updates for WoW. These updates are on par in hour-consumption with expansion packs for other games, if not moreso in the case of dungeons.
It's funny how the OP conveniently forgets (or just doesn't know) the important part of art history. Before the truly great artists ever experimented (Picasso is a huge example of this), they always perfected realism. You have to make sure you're the best at what you do before you experiment.
Even then... why should Blizzard be the one to innovate? Why not Bethesda (two IPs), Irrational (one IP), GameFreak (one IP), Bungie (one IP), Rocksteady (one IP), Neversoft (two IPs), MediaMolecule (one IP), Zynga (2 IPs), Cryptic (2 IPs), Naughty Dog (one IP), Treyarch (two IPs), Insomniac (two IPs), or Relic (two IPs)? Why are these games not "the worst thing for the video game industry today"? By your definition, they are. In fact, most of the March Mayhem board is ruining your perfect bubble of games.
Of course, by your definition, we should be worshiping SquareEnix and PopCap for mass producing games. Similarly, shovelware companies are the peak of cutting-edge innovation in gaming today, since they constantly release new, unrelated titles that run on different engines. After all, where would we be without Homie Rollerz?
In conclusion... I think you're missing the point of a large industry. Each company is free to perfect its art, while others perfect other things. Would you really be satisfied if Blizzard released a new shooter, but it was half-assed (as with your Mona Lisa example)? I doubt it. However, much like the Mona Lisa, finished or not, people would flock to it because they know that Blizzard has a reputation for quality products. And like the Mona Lisa, they would probably be disappointed to find a harsh reality: just some pretty graphics and nothing more.